Top Gear drives Grave Digger

What exactly is it like driving a five-tonne 1,500bhp monster truck worth $300,000?

Then there are those tyres. Standing at
66in high, they're traditionally found on tractors, although the sport now gets
tyres custom-made in China, too. When a tyre is taken straight off the farm,
the cleats used for traction in the mud have to be cut right down and buffed.
The rubber is also hollowed out, creating hundreds of grooves, all in the name
of weight saving - they can shave 60lb off each tyre.